JGTC

Mark at MRC Dyno in Seven Hills is an auto elec by trade, has done alot of troubleshooting for my R34 over the years. https://www.google.com/search?q=mrc+dyno&rlz=1C1CAFC_enAU850AU850&oq=mrc&aqs=chrome.2.69i57j0j69i59j0l5.1535j0j4&sourceid=chrome&ie=UTF-8

This thread has a bit more recent info on both Ross and ATI, there are tuners using both, namely PMC race engines use ATI, and CRD (croydon racing dev. in sydney) use Ross Ross have recently re-designed (Rel. Jul 2019) their balancers to have an integrated crank trigger which also allows them to have a larger dampening surface for their balancers. Their base model is now rated to 800hp, up from 600 i believe. I have their older base metal jacket version installed on my 300kw RB26, i believe correct installation per application is important to the longevity of these balancers. ATI's are USA made and can be rebuilt by anyone with a modular cartridge, and Ross are made in Aus and will need to be sent back to their base in VIC to be rebuilt.

Marvelous, box whine on a street car must get old at some point, but for us peon spectators it is fantastic.

Black on silver alloys is the G.O, really nice!

First time round on the their dyno i netted 320kw at the rear wheels (MRC remove the front driveshaft to preserve the standard front A-LSD diff). I recently went in for a touch-up tune with brand new sticky tyres and they had also just re-calibrated their dyno, as a result i saw a lower 300rwkw outright but same low and mid range. My mod list here -

Where abouts in Sydney are you? I've had multiple cars inspected, worked on, tuned and troubleshooted including my R34 with -9s and supporting mods on power FC at MRC in Seven Hills in western sydney and very happy with his work, feedback and attitude towards tuning. Have been back several times for other mods and troubleshooting and am happy to have found a good one-stop-shop in Mark.

What suburb is the car in? Mark @ MRC in seven hills is very thorough i've had cars serviced and inspected there, and JEM in ingleburn are also reportedly good operators.

All the yes, practical, performance and presence!

Yes all coilover sets i've seen suit both BNR34 and BCNR33 chassis, what coil overs are you going for? Easy way to check on the manufacturer's website.

What ever your current diff and gearbox can handle, as they pretty much double the scope and cost of a build to upgrade. Generally the 300-350rwkw mark with some pushing to 400kw while keeping things affordable.

Ah right worth taking to another suspension or wheel alignment shop for them to look over the work done, could be something simple with the installation causing the alignment issues.

We have have a 25GT with standard suspension, the front and rear camber is pretty close to neutral with little to no wear on the inside. Common for cars that are lowered on springs or coliovers to exert excessive rear camber, is your issue on the front or rear?

Notoras Motorsport are down in Fyshwick and have set up some pretty serious japanese cars, mainly known for their work on Evos and Hondas, but im sure they have worked on Skylines also. Could be a good starting place? https://www.facebook.com/pg/notarasmotorsport https://www.notarasmotorsport.com.au/ Inline suspension in Queanbeyan have good feedback also, as well as Racing Ready motorsport in West Belconnen. https://www.truelocal.com.au/business/inline-steering-and-suspension/queanbeyan https://www.racingready.com.au

I had hot starting problems after installing a larger fuel pump and larger grounding relay. It ended up being the original fuel pump module not wanting to send the correct signal to the pump. Once the module was bypassed, car now starts when hot without issue. Just another thing to consider.

Yep they are a no-brainer when replacing coils. I went with wiring specialties over oem as they seem to have attempted to improve over the standard item with good connectors and cables. The only upgrade i think that futureproofs the ignition further is going r35 coils with the PRP adapter plate rather than sticking with the standard aftermarket replacement coils.

Just got my car back today from MRC Mark said he replaced the 3 standard drive belts with smaller sized ones to fit the smaller underdriven pulleys correctly. Worth noting for anyone else looking at replacing their balancer as the original belts can be chucked back back on, but not ideal. Mine was the basic metal jacket version that is compatible with AC in stock location. While the car was there I also got my injectors serviced so i got Mark to spin it up on the dyno to do a check over and a few power runs to ensure the balancer and fuel were doing what they were supposed to for peace of mind.

Another thread over on the performance forums with additonal info. They accomodate the trigger kit nicely, i think prep and correct installation goes a long way to making them work correctly. https://r.tapatalk.com/shareLink?url=http%3A%2F%2Fwww%2Eperformanceforums%2Ecom%2Fforums%2Fshowthread%2Ephp%3Ft%3D67228295&share_tid=67228295&share_fid=3371&share_type=t

Sry just found the post saying rhdjapan, all good, awesome pics, been a dream of mine to get out there for TAS.

great coverage! Woule be keen on the wise square lenses for my 34, how much and who did you get them through? ;

Also related - the installation guide pertaining to RB motors which outlines a few key points including pulley alignment, crank snout inspection etc. https://rossperformanceparts.com/wp-content/uploads/2015/10/Ross-Tuffbond-Harmonic-Damper-Installation-Instructions.pdf

Adding this old thread from 2012 about Ross balancers to consolidate the info;

From reading other's experiences, i think both ATI and Ross units have been the culprit of throwing belts. Where i have read more regarding the Ross is like the above case where there has been some evident damage to the nose of the crank. Not sure if that is something that still exists with the long-nose crank RB26s, hoping it has been resolved with the newer units.

Yeah interesting, hopefully all the new gear (balancer and engine/trans mounts) doesn't wake up the nissan and cause and unwarranted reaction. The idea was to try and keep the bottom end happy for as long as possible. Reading the ATI thread, they have also had a number of reported issues of belts been spat. Alot of workshops are using ATI ie. Dahtone, Powertune and PMC, but to my knowledge, CRD and my tuner (MRC - they've used both without issues) use the Ross units.

I've just ordered a new Ross balancer (the basic metal jacket one) for my 300kw RB26 @ 110,000kms stock 8400rpm redline, doing it as a bit of preventative maintenance together with engine/trans mounts. Speaking to them, since they were bought out by omega 2013-14, there were several design changes to alleviate the tendancy of the old ones to spit power steering belts, as well as repeatability for more consistent manufacturing batches. They have since introduced their own in-house CNC machining. Their balances are also serviceable for around $300 (replacement of the rubber cartridge). My tuner also mentioned he prefers the placement of the crank trigger (potential future upgrade together with ECU) on the Ross. I know alot of people has since moved on with ATI, they mentioned around 50% of their sales are overseas with NZ being a big customer base for them, interested if anyone can add any insider knowledge here regarding these?